lhcb status and recent highlights

LHCb Status and Recent Highlights

Pascal Perret

LPC Clermont

On behalf of the LHCb Collaboration

14 January 2013

Berkeley Workshop on Heavy Flavor Production at Hadron Colliders

2

Heavy Flavours @ LHC LHC is a B- and D-mesons super factory:

Large bb cross section (~250 µb – 500 µb @ √s=7 – 14 TeV):LHCb measurement @ 7 TeV [PLB 694 (2010) 209]:

• ~ 280 μb (~75 ± 14 μb in LHCb acceptance)σcc is 20 times larger! [LHCb-CONF-2010-013] σ(pp → ccX) = ~6 mb

• LHCb acceptance / 1 fb-1:• ~1011 b decays [all species produced, B0,B+,BS, Λb,..]

• ~1012 c decays b-hadrons produced at low angle

• Spreading predominantly in the narrow cone

around the beam

Pascal Perret - LPC Clermont14/01/2013

High rate of background events:• σvis. Inel. ~ 60 mb at √s =7 TeV

• 1/200 event contains a b quark, typical interesting BR < 10-3

TRIGGER!

3Pascal Perret - LPC Clermont

Outline The LHCb detector

Selected physics highlights Parameters of the CKM matrix: g measurements Studies of CPV in the Bs system CP violation in charm Rare B decays

Conclusion

14/01/2013


The LHCb detector A single-arm forward spectrometer:

Covers ~4% of the solid angle, but captures ~30% of the heavy quark production cross-section

14/01/2013

~20m

~10m

10 – 250 mrad

10 – 300 mrad

LHCb region

2 < η < 5

ATLAS & CMSregion |η| < 2.5

5Pascal Perret - LPC Clermont14/01/2013

The LHCb detector


The LHCb detectorTTSi

MuonMWPCGEM

HCAL ECALRICH2 Outer

Tracker straw Tubes

Magnet

RICH1

VELO&PUSi

Inner Tracker

Si

p p

[The LHCb Detector at the LHC, JINST 3 (2008) S08005]

PS+SPD


The LHCb detector

Excellent muon identication = 97%, misid 2%

σ(E)/E ~ 70%/√E 10%

σ(E)/E ~ 10%/√E 1% σm~90 MeV for B0K* σm~8 MeV for B+J/K+, 25

MeV for B µ+µ-

(k k) 90% for (k ) <10%

~20 µm IP resolution at PT > 2 GeV

p p

Great Vertex Resolution! Primary/secondary separation, proper time resolution. Excellent momentum and mass resolution. Outstanding PID (K-π) and μ reconstruction. Dedicated Trigger system for B and C!

8

Some illustrations: Tracking VELO: IP resolution = 12 mm for high pT tracks


Tracking: sp/p ~ 0.4 – 0.6 % (5-100

GeV/c) p scale ~ 2 10-4 World best measurement of b-hadron

masses [PLB 708 (2012) 241]

Proper-time resolution: st = 45 fs Bs–Bs oscillations measured

cf CDF: 17.77 ± 0.10 ± 0.07 ps-1 (st = 87 fs)

[PRL 97 242003]

[LHC

b-CO

NF

-2012-02

]

[LHC

b-CO

NF

-2011-50]

Bs J/y f ( = 7 s MeV)

cf. [CMS DPS-2010-040] ~ 16 MeV/c2[ATLAS CONF-2011-050] ~ 22 MeV/c2

J/ y mass constrained


Some illustrations: PID performances

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Plot with hypothesis - No RICH B0 K

B0

Bs KKb p b pK

[JHEP 10 (2012) 037]


LHCb trigger

Level-0 trigger: hardware4 μs latency @ 40MHz“Moderate” ET/pT threshold:

• Typically• ET(e/γ)>2.7 GeV; ET(h)>3.6

GeV• pT(μ)>1.4 GeV/c

HLT trigger: software~30000 tasks in parallel on ~1500

nodes Storage rate: 5 kHz Combined efficiency (L0+HLT):

~90 % for di-muon channels~30 % for multi-body hadronic

final states

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LHCb operation

14/01/2013

2012 8 TeV 2.1 fb-1

2011 7 TeV 1.1 fb-1

2010 7 TeV 0.038 fb-1

2010

2011

2012

Semi-continuous (automatic) adjustment of offset of colliding beams allows luminosity to be levelled

4x1032cm-2s-1

Design:2x1032cm-2s-1

High Efficiency!

LHC

Detectors all with >~99% active channels

(operation)>94%~98% are good data!

4 times more collisions per crossing than in the design!!!

15 h!


LHCb Physics program

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B decays to charmonium Bs mixing parameters CP violation measurements B J/ψ X and related decays

B decays to open charm CKM angle γ from B D K family B decays to double charm Rare hadronic B decays

Charmless B decays Studies of B h h(‘) and B h h(‘)h(“) B V V decays Rare charmless B decays

Charm physics Mixing and CP violation Open charm prod. & spectroscopy Rare charm decays

Rare decays Leptonic, electroweak and radiative

decays SM forbidden processes

Semileptonic B decays Search for CP violation in mixing Form factors Rare decays

B hadrons & quarkonia Production and spectroscopy of B hadrons

and quarkonia

QCD, electroweak & exotica “Soft” & “hard” QCD Electroweak boson production, PDFs New long-lived particles

Etc …


LHCb Physics program

14/01/2013

B decays to charmonium Bs mixing parameters CP violation measurements B J/ψ X and related decays

B decays to open charm CKM angle γ from B D K family B decays to double charm Rare hadronic B decays

Charmless B decays Studies of B h h(‘) and B h h(‘)h(“) B V V decays Rare charmless B decays

Charm physics Mixing and CP violation Open charm prod. & spectroscopy Rare charm decays

Rare decays Leptonic, electroweak and radiative

decays SM forbidden processes

Semileptonic B decays Search for CP violation in mixing Form factors Rare decays

B hadrons & quarkonia Production and spectroscopy of B hadrons

and quarkonia

QCD, electroweak & exotica “Soft” & “hard” QCD Electroweak boson production, PDFs New long-lived particles

Etc …

+ 2 additional LHCb talks: Andrew Cook:

Quarkonium production in LHCb Jean Wicht:

Open c and b meson production in LHCb

14

MEASUREMENTS OF THE CKM ANGLE

The least well-constrained angle of the CKM triangle


CKM fitter 66±12°

UTFit 72±9°

*cbcd

*ubud

V V

V V-arg

From Babar + Belle

15

Measurements of can be measured in tree and loop-level decays

Tree-level decays: SM benchmark measurement of B DK family provide a wide and clean lab to measure it

• Several different final states (and B flavour) give independent measurements


Loop-level decays: Measurement of sensitive to NP Bd,s hh or hhh (h = , K) is the lab

Large hadronic uncertainties: can be controlled employing U-Spin symmetry(invariance of strong interaction under exchange of d and s quarks)

2 amplitudes, b→c (dominant) & b→u (color suppressed), interfere in decays to a common D0 and D0

modes state.

Bs Ds K+: Interference between 2

tree diagrams via Bs mixing

Penguin amplitudes: Interference of b→u tree & b→d(s) penguin diagrams


Measurements of : Tree-level decays Aside from , the ratio of favoured to suppressed B(D) decay amplitudes rBei(B- ) (rDeiD) depends on 2 hadronic unknowns:

rB(D), B(D)

Several methods to extract these hadronic unknowns (and ) are used. They depend on the D final state:

D in CP eigenstates (D0 K+K-, + -)• GLW (Gronau-London-Wyler) [PLB 265, 172 (1991)]

Cabibbo allowed (D0 K- +) and double Cabibbo suppressed states (D0 K+ - and D0 K+ - + - )• ADS (Atwood-Dunietz-Soni) [PRL 78, 3257 (1997)]

D in 3-body decays (D0 Ks +-)• GGSZ, Dalitz (Giri-Grossmann-Soffer-Zupan) [ PRD 68, 054018

(2003]

Combined analyses of all modes to extract all the unknowns14/01/2013


Measurements of : Tree-level decays Several kind of measurements have been published

all using 1fb-1 of 2011 data (√s = 7 TeV): Time-independent measurements:

B+D0K+ with D0 K , KK, [PLB 712 (2012) 203]B+D0K+ with D0 K : [LHCb-CONF-2012-030]B+D0K+ with D0 KS , KSKK : [PLB 718 (2012) 43]

Gamma combination from time-independent:Using B+D0K+ and B+D0 +: [LHCb-CONF-2012-032]

Time-independent with neutral B decays:B0D0K*0 with D0 KK: [LHCb-CONF-2012-024]

Time-dependent measurements:BSDSK decays (first!) [LHCb-CONF-2012-029]

14/01/2013

18

Measurements of : Tree-level decays ADS modes: B+D0K+ with D0 K, KK,


Considering KK, K and together, direct CPV is observed (5.8 ) in B DK decays for the first time!

Cf (or κ) is the coherence factor, with Cf =1 for two-body decay, and 0< Cf <1 for multi-body decay

[PLB 712 (2012) 203]

Evidence for asymmetry in B DK (4 ):AADS(DK)= - 0.52 0.15 0.02

Hint for asymmetry in B D (2.4 ):AADS(D )= - 0.143 0.062 0.011 B- B+

B- B+

19

Measurements of : Tree-level decays ADS modes: B+D0K+ with D0 K

Similar to ADS but D decay parameters differ (rD, D)Add statistics but also new informationFirst observation of rare ADS decays:


Systematics small, dominated by• Particle identification (R)• Production, interaction, detection asymmetries (A)

5.1 in B DK :AADS(DK)= - 0.42 0.22RADS(DK)= (1.24 0.27)%

10 in B D :AADS(D)= + 0.13 0.10RADS(D )= (0.369 0.036)%

B- B+

B- B+

[LHCb-CONF-2012-030]

20

Measurements of : Tree-level decays LHCb combination using BDh with Dhh, hhh, Kshh (h=K,)

Use frequentist approach to combine the results from:


= 71 16° [43.8 – 101.5]° @ 95%

Precision already comparable with averages from B factories

• Babar: = 69 17°• Belle: = 68 15°

B[hh]D K GLW/ADS PLB 713 (2012) 351

B[K]D K GLW/ADS LHCb-CONF-2012-030

B[K0S hh]D K GGSZ PLB 718 (2012) 43 B DK only

+ B D


Measurements of : Loop-level decays LHCb has already provided several results in the field:

Time-integrated CP asymmetries B K : [PRL 108 (2012)201601] 0.35fb-1

• Bd K : world’s best (6) significance of the direct CP asymmetry.

• Bs K: first evidence of direct CP asymmetry (3 ).Time-dependent CP asymmetries B /KK : 0.67 fb-1

• Bd : measurement favors BaBar results.

• Bs KK: first ever measurement in this channel


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Adir = 0.11 0.21 0.03

Amix = -0.56 0.17 0.03

AdirKK = 0.02 0.18 0.04

AmixKK = 0.17 0.18 0.05

22

Measurements of : Loop-level decaysTime-integrated CP asymmetries: Bu hhh ( K, KKK, )

[LHCb-CONF-2012-028, LHCb-CONF-2012-018] 1 fb-1: • Several first observations of CP violation. • Study of asymmetries in localized regions.


• Asymmetries observed and well controlled using control channels (B J/ K).

ACP(K) = 0.034 ± 0.009(stat) ± 0.004(syst) ± 0.007

Several first observations are made in Bs Kshh [LHCb-CONF-2012-23]

• Good prospects for future analyses

B- B+

assumption of no CP violation in B J/ K


Bs

BS0 J/ y f

bs

VtsVtb

VcsVcb

*

VusVub*

*

CDF: 2.8 fb-1 + D0: 2.8 fb-1

2.3 consistency with SM

S MEASUREMENTS


CP violation in Bs J/ y X The interference between Bs decay to J/yX with or without

mixing gives rise to a CP violating phase s.

It is a sensitive probe of New Physics:It is well calculated in the SM:

• sSM= s

M – 2sD -2s= -2arg(-VtsVtb*/VcsVcb*) = -0.0370.002

New particles can contribute to the Bs-Bs box diagrams and significantly modify the SM prediction adding large phases:

• s= sSM + s

NP

14/01/2013

Bs

Bs

J/yX

M

D0

-D0

+NP?B0B0

b ,

u , c , t

,

d , s b

W +¿¿W−


Golden channel: Bs J/y(+-)f(K+K-) Theoretically and experimentally clean

Relatively large branching ratio and clean topology It is not a pure CP eigenstate (P VV decay)

2 CP even, 1 CP odd amplitude • Needs flavour-tagged, time-dependent angular analysis to disentangle

CP-even and CP-odd components• Initial states must be tagged• Final states need to be statistically separated through angular analysis

• Mistag and proper time resolution are crucial…Use opposite side tag: Power=(2.35 ± 0.06 (stat))% [LHCb-CONF-2012-026]

• 3 angles in the transversity rest frame:

14/01/2013

J/ y rest frame rest frame

cos ytr: kaonscos tr, cos tr : muons


CP violation in Bs J/ y f 6 observables: 3 angles + invariant mass, Bs flavour, proper time Analysis based on 1.0 fb-1 [LHCb-CONF-2012-002]

21k signal events• world's largest sample

Only few % background Fit cleanly separates

CP even/odd components Different lifetimes clearly

visible in fit projection

14/01/2013

CP-even

CP-odd

S-wave-oddB

CP-oddCP-oddCP-odd

CP-evenCP-evenCP-even

S-wave-odd S-wave-oddS-wave-odd BBB

Invariant mass + Bs flavour

Proper time

Angles of the decay productsS-wave-odd: Non-resonant Bs→ J/ψKK

27

CP violation in Bs J/ y f But: Two-fold intrinsic ambiguity


Study strong phase difference s= s- between K+K- P-wave and S-

wave amplitudes as a function of m(K+K-) around the f(1020)• S-wave: non-resonant + tail from f0(980)

• Expect no significant variation of phase• P-wave: f(1020), going through resonance

• Expect rapid positive phase shift Analysis based on 0.37 fb-1

Determine s in four K+K- mass bins

[PRL 108 (2012) 241801] Solution corresponding to ΔΓs > 0

preferred with 4.7 significance

(s,s,//,s) (-s,-s,-//,-,-s) s - -s

28

CP violation in Bs J/ y f Results [LHCb-CONF-2012-002]

Simultaneous fit with ΔΓs=ГL – ГH lifetime difference between CP eigenstates


ϕs= −0.001± 0.101(stat)± 0.027(syst) rad

Result consistent with Standard Model prediction ΔΓs= 0.116 ± 0.018(stat)± 0.006(syst) ps−1

First observation (> 5 ) of ΔΓs ≠ 0 Both results dominated by statistical uncertainties


s measurements

14/01/2013

Bs J/ y p+p-B0

7421105 events

s measurement in Bs J/ y p+p-

[PLB 713 (2012)378]Dominated by f0(980) → p+p-

Lower BR than Bs J/y fPurely CP-odd eigenstate

• No angular analysis needed!ϕs= −0.019± 0.17(stat)± 0.004(syst) rad

Simultaneous fit of Bs J/yf and Bs J/y p+p-

[LHCb-CONF-2012-002]ϕs= −0.002± 0.083(stat)± 0.027(syst) radMost precise measurementIn perfect agreement with the SM

30

CP VIOLATION IN CHARM

LHC is also a charm factory: σcc ~ 20 σbb ! Is charm a background or a physics signal for LHCb?

Good efficiency due to moderate high-pT trigger requirements

CPV in charm predicted to be O(10-3) in SM But long distance effects are difficult to estimate …



Time integrated ACP in charm

The charge of π±s from D*+ → D0 π+

s, D*- → D0 π-s tags the D flavour

But Araw(f) depends about production and detection asymmetries• This vanishes for the difference of a flavour symmetric final states:• ACP= ACP(+-) - ACP (K+K-) Araw(+-) - Araw (K+K-)

LHCb measurement (0.6 fb-1): [PRL 108 (2012) 111602]

• 1.4 M tagged D0 → K+K-

• 0.4 M tagged D0 → +-

ACP= (-0.82 ± 0.21(stat) ± 0.11(sys))%

3.5 significance: first evidence!Non-zero ACP confirmed by:

• CDF (2.7 ) [CDF note 10784]• Belle (2.1 ): [Byeong Rok Ko @ ICHEP 2012]

14/01/2013

Signal window


Charm mixing measurement Charm mixing:

Should be very small in SM It has been confirmed by BaBar, Belle & CDF

But no clear observation in a single experiment. The oscillation is very slow LHCb Measurement of the time-dependent ratio of D0 decays to

Wrong Sign to Right Sign (1 fb-1): [arXiv:1211.1230]

The charge of π±s from D*+ → D0 π+

s, D*- → D0 π-s tags the D flavour

R(t) flat in decay time no mixingR(t) not flat (parabolic shape) in decay time mixing !

14/01/2013

)(

)()(

0

0

KDN

KDNtR

33

Charm mixing measurement with LHCb


~8.4 M ~36 k

D0 → K- + D0 → K+ -

Ratio in all bins of decay time

The no mixing hypothesis is now excluded at the 9.1 level in a single experiment

RD= BR(D0 → K+ -)BR(D0 → K- +)

RD= (3.52 0.15)10-3

34

(VERY) RARE DECAYS


35

Radiative decays Theory

• Predictions for BR suffer from large uncertainties from hadronic form factors• B0 → K* = (4.31.4)x10-5 ; Bs → = (4.31.4)x10-5

• Ratio of BR and direct CP asymmetries are better known LHCb measurements (1 fb-1) [NP B 867 (2012) 1]


RBR = 1.23 0.06 0.04 0.10(fs/fd)

Th: 1.0 0.2 ACP(B0 → K* ) = (0.8

1.7 0.9)%Th: (-0.61 0.43)%

WB measurements

N B0 → K* = 5279 93 N Bs → = 691 36 B0 → K* Bs →

Invariant mass resolution: ~90 MeV/c2

BR(Bs → ) = (3.5 0.4)x10-5

No sizeable deviation from SM

36

BdK*0m+m-

Flavour Changing Neutral Current Decay In SM: b s electroweak penguin NP diagrams could contribute at same level

Sensitive to magnetic and vector and axial semi-leptonic penguin operators


Forward-backward asymmetry AFB(q2)In the mm rest-frame is sensitive NP

probeZero of AFB(q2) is of particular interest

LHCb has largest sample in world, as clean as the B Factories!

gluino, chargino,neutralino, ?

Higgs, ?

900 ± 34 events



BdK*0m+m-

Decay described by 3 angles θl, φ, θK and di-μ invariant mass q2

In the Standard model, AFB changes sign at a well defined q2 point

No hadronic uncertaintiesq2

0 = 4.36 GeV2 [EPJ. C 41 (2005) 173]

LHCb measures (1fb-1): preliminary[LHCb-CONF-2012-008]

q20 = 4.9 GeV2

14/01/2013

+0.33 -0.31

+1.1 -1.3 68% c.l.


Isospin asymmetry in B K(*) m+m-

The isospin asymmetry is defined as:

Predicted to be very small in SM LHCb measurement (1 fb-1): [JHEP 7 (2012) 133]

14/01/2013

AI(B K μ+μ- ): 4.4 deviation from 0 (integrated over q2)!

No similar effect seen in AI(B K* μ+μ- ) ~0 …

More data to come!

39

Search for K0S → m+m-

FCNC decay not yet observed: SM: BR = (5.0 ± 1.5) x 10-12

Best limit (1973): BR < 3.2 x 10-7 @ 90% c.l.

LHCb analysis (1 fb-1): [arxiv:1209.4029v2]• The Peaking background from K0 → + - decays

is shifted due to μ - π mass difference.• Good mass resolution helps containing it.

• K0S → + - is used for normalization


μμhypothesis

ππhypothesis

K0S → µ+µ-

Use CLs method to determine an upper limit on the BR:

BR(K0S → + -) <

11(9) x10-9 @ 95% (90%) c.l.

Factor 30 improvments vs previous result!

Signal window

Expected bgd-only1 (2 ) bandsobserved

40

SM SM MSSM

W

W

b

s

t

? ?

~ tan6/MH2

B(s)m+m-

Decay strongly suppressed (helicity) in SMWell predicted in the SM:

• BR(Bs → m+m-)=(3.5 ± 0.3) 10-9

• BR(B0 → m+m-)=(0.11 ± 0.01) 10-9

[arXiv:1208:0934 & PRL 109 041801 (2012)]Sensitive to New Physics; could be strongly enhanced in SUSY


Experimentaly easy to reconstruct• Fully reconstructable leptonic final state• Searching it for a long time!


B(s)m+m-

A long quest for Bsm+m-

First attempt by CLEO (1984) • BR(B0m+m-) < 2x10-4 (90%CL)

And ARGUS (1987)• BR(B0m+m-) < 5x10-5(90%CL)

Situation before October 2012 (95%CL):• ATLAS: BR(Bsm+m-) < 22x10-9

• CMS: BR(Bsm+m-) < 7.7x10-9

• LHCb: BR(Bsm+m-) < 4.5x10-9

[PRL 108 (2012) 231801]• LHC combination

BR(Bsm+m-) < 4.2x10-9

BR(Bdm+m-) < 8.1x10-10

14/01/2013


First evidence of Bsm+m-

LHCb measurement (2.1 fb-1) 2011 (7 TeV) + ½ 2012 (8 TeV) data: [arXiv:1211.2674]

Selection based on multivariate estimator (BDT) combining vertex and geometrical information

2-dimensional analysis with blinded signal mass region• Boosted decision tree based on topological variables• Dimuon invariant mass

B(s)h+h- are used as calibration B+ J/ (m+m-)K+ and B0 K+p- as normalization

3.5 s observation of the signal!

14/01/2013

Cut on BDT>0.7

Bs region

Bd region

43

First evidence of Bsm+m-

Branching fraction is measured

BR(Bsm+m-) = (3.2 (stat) (syst))x10-9

Double sided limit (@95% CL)

1.1x10-9 <BR(Bsm+m-)< 6.4x10-9

Tightest upper limit is set

BR(Bdm+m-) < 9.4x10-10 @95% c.l.

Results compatible with SM Constraints on new physics models


A large part of the TeV-scale SUSY is excluded

However there are still a number of models, which behave in the same way in this point

+1.4 -1.2

+0.5 -0.3

Based on arXiv:1205.6094v1 [hep-ph]

Expected SM + bkg

Expected bkg

Observed


A Bsm+m- candidate event

14/01/2013

+

-

+

Bs

- M=5.353 GeV/c2, BDT = Decay length = 20.51 mmTracks shown for pT>0.5 GeV/c

PV

45

CONCLUSION


46

Excellent LHC & LHCb performances: a huge success!They are working spectacularly well

A lot of interesting LHCb results:In the Bd sector results (, etc.) are competitive with B factoriesLots of “most precise“ measurements and “first observations“ with 1

year of data takingInteresting results in Charm physics:

• Is that the NP could be revealed here?First evidence of Bsm+m- after a quest of more than 25 years!

We are almost everywhere limited by statistical errorMany analyses have to still process x2 data compared to now Much more data to come after LS1 (till 2017), with increased cross

section • And specially after the upgrade!

No Standard Model disagreement yet … We are poised for a long and exciting physics program !!!

Pascal Perret - LPC Clermont

Conclusions

14/01/2013

47

THANK YOU!


48

FUTURE:LHCB UPGRADE


Start-up 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 … 20xx

L (cm-2s-1) = 1032 3-4x1032 4x1032 10 - 20 1032

LS1 LS2

√s (TeV) = 0.9 - 7 - 8 - 13

50 ns 25 ns 25 ns

dtL 3 fb-1 ~3 fb-1 > 50 fb-1

49

LHCb upgrade Why:

No (not yet) deviation observed from The Standard Model …We need more statistics!

LHCb has demonstrated its ability to perform precise measurements in an hadronic environment:

Almost all LHCb results are completely dominated by statistical uncertainties• Leading systematic uncertainties will also decrease with increasing

statistics


Current limitations are due to the 1 MHz L0 trigger/readout systems• To keep output rate < 1 MHz requires raising

thresholds• Rate for hadrons saturate at 4x1032

Upgrade of LHCb detector planned for 2019 to take at least 10xmore data: 50 fb-1 (over 10 years) running at L = 1-2x1033 cm-2s-1


LHCb upgrade How: [CERN-LHCC-2011-001, CERN-LHCC-2012-007]

Remove the hardware trigger Read out detector at 40 MHz (bunch crossing rate). Trigger fully in software in CPU farm. Requires replacing front-end electronics

This will allow to operate the detector at x 5 higher luminosityRequires new main tracker to cope with particle densities

Both together will give a factor > 10 increase in rate for hadronic channels

Framework TDR submitted to the LHCC in May 2012: Physics case enthusiastically endorsed in September 2012Detector R&D underway

14/01/2013


LHCb upgrade

2013: R&D, technology choices, preparation of sub-system TDRs2014: funding, procurements2015-2019: construction and installation

14/01/2013


LHCb upgrade LHCb upgrade sensitivities for 50 fb-1 [arXiv:1208.3355]

From “exploration” to “precision” studied

14/01/2013


The LHCb collaboration

14/01/2013

• 17 countries• 63 Institutes• ~800 members• 84 publications• 102 Conference notes

• Most results based on 2011 data, many more results will come soon!

lhcb status and recent highlights

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